Introduction

Over the past decade, sustainability has evolved from a matter of corporate social responsibility into a core legal and commercial obligation. Today, businesses are increasingly expected not only to generate profits but also to demonstrate how their operations affect the environment, society, and corporate governance. Recognising the critical role of the private sector in achieving climate neutrality and sustainable economic growth, the European Union has introduced one of the world’s most comprehensive corporate sustainability frameworks.

However, the framework that was initially celebrated for promoting transparency and accountability soon attracted criticism for its complexity and the significant compliance burden it imposed on businesses. These concerns ultimately prompted the European Commission to rethink its approach, leading to the Omnibus reform packages that are now reshaping corporate sustainability regulation across the European Union.

This three-part series examines those reforms in detail. Before analysing the recent changes, it is important to understand the legal framework that existed before the reforms and why the European Union considered a regulatory reset necessary.

The European Green Deal: The Foundation of the Sustainability Framework

The European Union’s sustainability agenda is built upon the European Green Deal, launched in 2019 with the objective of making Europe the world’s first climate-neutral continent by 2050. The Green Deal recognises that governments alone cannot achieve this transition. Businesses are equally responsible because they influence carbon emissions, natural resource consumption, labour standards, human rights, and global supply chains.

To ensure that companies actively contribute to these objectives, the European Union developed a comprehensive legal framework requiring businesses to become more transparent about their environmental and social impacts while integrating sustainability into their corporate decision-making processes.

The Three Pillars of the EU’s Corporate Sustainability Framework

The EU’s sustainability regime is not based on a single law. Instead, it consists of multiple legislative instruments that work together to regulate corporate sustainability. Among these, three measures form the backbone of the framework.

Legislation	Primary Purpose	What it Requires
CSRD	Sustainability reporting	Requires companies to disclose sustainability information relating to environmental, social and governance matters in their annual reports. The objective is to improve transparency and provide investors, regulators, consumers, and other stakeholders with reliable and comparable sustainability information.
ESRS	Reporting framework	Prescribes how companies must prepare and present sustainability disclosures, including mandatory metrics, methodologies and reporting standards.
CSDDD	Corporate due diligence	Requires companies to identify, prevent, mitigate and address adverse human rights and environmental impacts across their operations and parts of their value chains.

Together, the CSRD, ESRS, and CSDDD create a comprehendsive regulatory framework that combines disclosure obligations with substantive corporate responsibility.

Shortcomings

Although the EU’s sustainability framework was widely recognised as a significant step towards responsible corporate governance, businesses across Europe argued that the regulatory requirements had become increasingly difficult to implement.

High compliance costs, including investments in ESG software, consultants, auditors and dedicated compliance teams.
Extensive reporting requirements, requiring significant resources to collect and verify sustainability data.
Indirect burdens on SMEs, as larger companies sought ESG information from suppliers across their value chains.
Reduced competitiveness, with concerns that European businesses faced stricter regulatory obligations than competitors in other jurisdictions.
Administrative complexity, making compliance increasingly difficult, particularly for multinational businesses.

Collectively, these concerns prompted the European Commission to reconsider whether the framework had struck an appropriate balance between sustainability objectives and business competitiveness.

The Purpose of the Omnibus Reforms

In response to these concerns, the European Commission introduced what is now known as the Omnibus Package.

The term “omnibus” is commonly used in legislative practice to describe a single legislative initiative that amends multiple existing laws simultaneously. Rather than replacing the EU’s sustainability framework altogether, the Omnibus reforms seek to simplify and streamline several interconnected legislative instruments, including the CSRD, the CSDDD, and related technical reporting standards.

The objective is not to abandon corporate sustainability. Instead, the reforms aim to reduce unnecessary administrative burdens, lower compliance costs, improve legal clarity, and make the regulatory framework more proportionate while preserving the broader objectives of the European Green Deal.

Applicability of the Omnibus packages

The European Union’s corporate sustainability framework extends beyond businesses incorporated within the EU and applies to a broad range of companies that meet specified legal thresholds.

Category	Original Applicability
Large EU undertakings (CSRD)	Companies meeting at least two of the following: more than 250 employees, turnover above €50 million, or balance sheet above €25 million.
Listed companies	Companies listed on regulated EU markets, subject to phased implementation and certain exemptions.
Non-EU companies (CSRD)	Companies generating more than €150 million annual turnover within the EU with a qualifying EU subsidiary or branch.
Large companies (CSDDD)	More than 1,000 employees and worldwide turnover exceeding €450 million.
Non-EU companies (CSDDD)	More than €450 million turnover generated within the EU.

Conclusion

The European Union’s corporate sustainability framework represents one of the most ambitious regulatory initiatives in the world. Yet its implementation also revealed an important policy challenge: how can regulators maintain high standards of corporate accountability without imposing disproportionate compliance burdens on businesses?

The Omnibus reforms are the European Commission’s attempt to answer that question. Rather than dismantling the sustainability framework, they seek to recalibrate it by simplifying reporting obligations while preserving the EU’s long-term commitment to sustainable business practices.

In the next article of this series, we will examine Omnibus Package I & II in detail, exploring the legal amendments introduced, the rationale behind those changes, and their implications for businesses operating within and beyond the European Union.

References

https://www.rsm.global/insights/key-changes-introduced-eu-omnibus

https://www.tuvsud.com/en-us/resource-centre/stories/the-eus-omnibus-initiative

https://www.linkedin.com/pulse/navigating-new-era-esg-reporting-esrs-csrd-explained-rewild-agency-edonc?utm_source=share&utm_medium=member_ios&utm_campaign=share_via

The Lawsplain

Understanding The EU Sustainability Reporting Regime